IBM DDRS-39130 Hard Drive Specifications - Page 46
LED Circuit
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6.3 LED Circuit Jumper pin #1 and #2 are used to drive an external LED. Instead of the the jumper pins, the following pins can be used to drive LED. 68-Pin Model : Auxiliary Connector Pin #8 and #11. 80-Pin Model : SCA-2 Connector Pin #77 as shown in 6.3.3, "80-Pin Model" on page 38. The schematics of LED circuit on each model are as follows. 6.3.1 50-Pin Model DDRS 39130 / DDRS 34560 50 Pin Model +5V o > < 620 Ohm > o Jumper Pin #1 for LED Anode o Jumper Pin #2 for LED Cathod / \ /// Figure 28. LED Circuit of 50-Pin Model 36 OEM Spec. of DDRS-3xxxx
6.3
LED Circuit
Jumper pin #1 and #2 are used to drive an external LED.
Instead of the the jumper pins, the following pins can be used to drive LED.
68-Pin Model : Auxiliary Connector Pin #8 and #11.
80-Pin Model : SCA-2 Connector Pin #77 as shown in 6.3.3, “80-Pin Model” on page 38.
The schematics of LED circuit on each model are as follows.
6.3.1
50-Pin Model
DDRS 39130 / DDRS 34560 50 Pin Model
+5V
o
>
< 620 Ohm
>
o Jumper Pin #1 for LED Anode
o Jumper Pin #2 for LED Cathod
/
\
///
Figure 28. LED Circuit of 50-Pin Model
36
OEM Spec. of DDRS-3xxxx